Ecstasy or MDMA (methylenedioxymethamphetamine) is a stimulant that combines the properties of methamphetamine or "speed" with mind-altering or hallucinogenic properties. Considered the most commonly used designer drug, Ecstasy is a close derivative of methamphetamine and can be described as a hallucinogenic stimulant. Designer drugs are illicit variations of other drugs. Because of many different recipes used to manufacture Ecstasy, deaths have been caused by some other substances inadvertently created during production, such as PMA (paramethamphetamine). Ecstasy was banned in 1985, and is currently classified as a Schedule 1 substance.